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Home » Public Forums » GMCnet » Gas gauge issues all of a sudden ((well I WAS messing about in the dash yesterday))
[GMCnet] Re: Gas gauge issues all of a sudden [message #365557 is a reply to message #365554] Mon, 19 July 2021 22:56 Go to previous messageGo to previous message
Nelson is currently offline  Nelson   United States
Messages: 120
Registered: August 2014
Karma:
Senior Member
There are two tanks and each has a sender. Have you tried selecting the aux tank and seeing if the gauge changes?

Nelson
Belle isle FL

Sent from my iPad

> On Jul 19, 2021, at 10:53 PM, twlldeen@gmail.com wrote:
> After my shakedown cruise last week, -I'm guessing about 250 miles or so round trip, the gas gauge showed just under 1/2 tank.
>
> I'd filled it to the brim before I left, BTW.
>
> I've been back about a week and put about 2 or 3 hours on the Onan so I could run the fridge and keep the house battery up. Well today I had the genny
> running and after about 10 mins it coughed a bit then quit. Wouldn't start again, tried to run for a second or so then died again.
> Even though the coach was level and the gas gauge still showed just under 1/2, symptom was "out of gas" in my mind. Headed over to the gas station and
> put $100 bucks worth in. Up here in BC, gas is $1.66/litre which translates to $6.28/us gallon and $100 gets you 59.3 litres or just shy of 15
> gallons. [yep I know it's fupped up, but what can ya do]
>
> Anyway, was surprised to see gas gauge stay at just under 1/2. Onan fired up no problem and ran steady after the fill-up.
>
> So ....looks like the gas gauge isn't working properly? I was, as the title says, "messing about in the dash yesterday" -however if it was down enough
> to make Onan quit it certainly wasn't at half a tank. The gauge might have stuck when I got back, before I took the dash apart, because it didn't
> really change from just under 1/2 all week.
>
> The gas gauge always showed the amount of gas even when ign was off which I also found odd, the other two indicators, temp and oil pressure zero out
> when the engine quits, but not the gas gauge ...normal behaviour?
>
> Larry
> --
> Larry - Victoria BC -
>
> 1977 Palm Beach 40,000 miles, PO said everything working but forgot the word NOT. New Atwood fridge, water heater & furnace. New SS exhaust system,
> 6000w Onan, Iota Converter, R134A A/C, New fuel lines & heat exchange hoses
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